基于直接转矩驱动的电动车动态特性分析

摘要

根据异步电机直接转矩控制原理,在Matlab/Simulink软件环境下建立了电动汽车用异步电机的仿真模型和定子磁场定向下的DTC控制系统模型.以实际电动汽车用电机为例,对电动汽车的几个典型工况进行仿真分析.仿真结果表明,该电机及控制模型具有良好的稳态、动态性能,是一个很好的电动车驱动选择方案.%According to the principle of direct torque control used in an asynchronous motor, the simulation models of asyn-chronous motor for electric vehicle and direct torque control system in the stator magnetic orientation were established with Matlab/Simulink software. For an asynchronous motor driving the electric vehicle, the simulation of several typical operating conditions was carried out. The results show the model of motor and control system has good stable and dynamic performance,which is a good scheme for electric vehicle propulsion.